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Computers on-board vehicles today can communicate with specialized in-vehicle instruments through standard serial connectors and standard protocols. With the emergence of Internet technologies and wireless links, we can extend on this communication outside the vehicle to remote locations - we can monitor and control a vehicle from across the plant or around the world. This paper describes a framework for interacting with vehicles from anywhere in the world using existing vehicle network interfaces and standard Internet protocols. The first implementation of this framework uses J1979 [1], a Gryphon vehicle interface [2], and a standard web browser running Java applets to interact with target vehicles. In addition to describing the implementation, this paper explores some of the possible applications of this framework.

This paper describes an implementation of the J1850 protocol using the Time Processor Unit (TPU) of the Motorola MC68332 microcontroller. In particular, it describes the creation of an intelligent J1850 interface that fits onto a PCMCIA Type III PC Card. A key factor allowing this much functionality to be placed into a PC Card is the integration of the J1850 interface into the MC68332 itself, rather than relying on external ICs to provide the network interface. This paper describes the organization of the J1850 interface and shows how it can be integrated into any MC68332 design in which the TPU is available for use as a communication processor.